Controls for power transmission



Jan. 19, 1965 R. w. WAYMAN CONTROLS FOR POWER TRANSMISSION 43 Sheets-Sheet 1 Filed June 5, 1950 [raver-Liar:

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60. IN TRANSMISSION MECHANISM FOR AN AUTOMOTIVE VEHICLE HAVING A DRIVING ENGINE WITH A THROTTLE, THE COMBINATION OF A DRIVE SHAFT ADAPTED TO BE DRIVEN BY THE VEHICLE ENGINE, A DRIVEN SHAFT ADAPTED TO DRIVE THE VEHICLE, A CONTROL FOR THE ENGINE THROTTLE, MEANS FOR PROVIDING A LOW SPEED POWER TRAIN BETWEEN SAID DRIVE SHAFT AND SAID DRIVEN SHAFT AND INCLUDING A FRICTION ENGAGING MECHANISM FOR COMPLETING THE POWER TRAIN WHEN ENGAGED, MEANS PROVIDING A HIGH SPEED POWER TRAIN BETWEEN SAID DRIVE SHAFT AND SAID DRIVEN SHAFT AND INCLUDING A FRICTION ENGAGING MECHANISM FOR COMPLETING THE POWER TRAIN WHEN ENGGED, MEANS RESPONSIVE TO CHANGES IN SPEED OF SAID DRIVEN SHAFT, MEANS FOR DISENGAGING ONE OF SAID FRICTION MECHANISMS WHEN PREDETERMINED ENGAGING PRESSURES ON THE OTHER FRICTION ENGAGING MECHANISMS ARE REACHED FOR CHANGING THE DRIVE BETWEEN SAID DRIVE SHAFT AND SAID DRIVEN SHAFT AND PROVIDING AN OVERLAP BETWEEN THE ENGAGEMENTS OF SAID FRICTION MECHANISMS, AND MEANS UNDER THE CONTROL OF SAID THROTTLE CONTROL AND SAID SPEED RESPONSIVE MEANS FOR CHANGING SAID PREDETERMINED ENGAGING PRESSURES AT WHICH SAID ONE FRICTION MECHANISM IS DISENGAGED TO INCREASE SAID PREDETERMINED FRICTION ENGAGING PRESSURES WITH ENGINE THROTTLE OPENING AND TO DECREASE SAID PREDETERMINED PRESSURES WITH DRIVEN SHAFT SPEED. 